@inproceedings{daume13hrtf, title = {Kernel Regression for Head-Related Transfer Function Interpolation and Spectral Extrema Extraction}, author = {Yuancheng Luo and Dmitry N. Zotkin and Hal {Daum\'e III} and Ramani Duraiswami}, booktitle = {Proceedings of the IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)}, year = {2013}, abstract = { Head-Related Transfer Function (HRTF) representation and interpolation is an important problem in spatial audio. We present a kernel regression method based on Gaussian process (GP) modeling of the joint spatial-frequency relationship between HRTF measurements and obtain a smooth non-linear representation based on data measured over both arbitrary and structured spherical measurement grids. This representation is further extended to the problem of extracting spectral extrema (notches and peaks). We perform HRTF interpolation and spectral extrema extraction using freely available CIPIC HRTF data. Experimental results are shown. }, keywords = {ml}, url = {http://pub.hal3.name/#daume13hrtf}, }